Narrow it down to the Filthy Rich and Kartel 98. Prester will be too stiff, 106 will probably be too wide for mostly park (unless you really like a wide park ski). Out of those two, the FR will be softer and spin faster while the 98 will be stiffer and more surface trick/press oriented. It's really width and flex preference between the two. Both will be stable at pretty much all speeds. The 98 will be a bit better in the powder.